| OLD | NEW |
| (Empty) |
| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/gtk/owned_widget_gtk.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 | |
| 11 OwnedWidgetGtk::~OwnedWidgetGtk() { | |
| 12 DCHECK(!widget_) << "You must explicitly call OwnerWidgetGtk::Destroy()."; | |
| 13 } | |
| 14 | |
| 15 void OwnedWidgetGtk::Own(GtkWidget* widget) { | |
| 16 if (!widget) | |
| 17 return; | |
| 18 | |
| 19 DCHECK(!widget_); | |
| 20 // We want to make sure that Own() was called properly, right after the | |
| 21 // widget was created. There should be a floating reference. | |
| 22 DCHECK(g_object_is_floating(widget)); | |
| 23 | |
| 24 // Sink the floating reference, we should now own this reference. | |
| 25 g_object_ref_sink(widget); | |
| 26 widget_ = widget; | |
| 27 } | |
| 28 | |
| 29 void OwnedWidgetGtk::Destroy() { | |
| 30 if (!widget_) | |
| 31 return; | |
| 32 | |
| 33 GtkWidget* widget = widget_; | |
| 34 widget_ = NULL; | |
| 35 gtk_widget_destroy(widget); | |
| 36 | |
| 37 DCHECK(!g_object_is_floating(widget)); | |
| 38 // NOTE: Assumes some implementation details about glib internals. | |
| 39 DCHECK_EQ(G_OBJECT(widget)->ref_count, 1U); | |
| 40 g_object_unref(widget); | |
| 41 } | |
| OLD | NEW |